There are 8 cups/ 4 pints or  16 scoops in 2 quarts of ice cream.
Money that is paid for the use of money is called interest. When you keep your money in a bank savings account, the bank credits your account with interest.
Payment for use of someone else's money; usually expressed as an annual rate in terms of a percent of the principal (the amount owed). Investment Setting aside money for future income, benefit, or profit to meet long-term goal; using savings to earn a financial return.